Acoustics measures are the scientific study of sound and its properties. The three solutions for the term acoustics measures are BEL, DAMP, and SONES. BEL is a unit of sound intensity, which is used to measure the loudness of a sound. DAMP is an acronym for Decibel Absorption Measurement, which is used to measure the amount of sound that is absorbed by a material. Finally, SONES is a unit of loudness, which is used to measure the perceived loudness of a sound.